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Dimas [21]
2 years ago
12

Plsss help i’ll give brainliest if you give a correct answer

Mathematics
2 answers:
Ugo [173]2 years ago
8 0

Answer:

23

Step-by-step explanation:

wel2 years ago
8 0

Answer:

I'm pretty sure its 23.

Step-by-step explanation:

I subtracted 38 from 15 and got 23. Then I replaced 23 for x.

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Order of Operations- -6+(-30) divided by 5-(-2). Explain step by step
Reil [10]

Answer:

-36/7 or -5.14287

Step-by-step explanation:

so I would get rid of parentheses you do not need them

\frac{-6+-30}{5--2}=\frac{-36}{7}(because when two negative come before two numbers like -x-y they are being added but negative is present to the result of the sum, when one negative sign comes after a number and the other negative sign comes before a number, like x--y they are being added as well but negative is not present to the result of the sum)

-36/7=-5.1428

hope this helps!

7 0
3 years ago
I am a real number
Elden [556K]

Answer:Any number less than -13.

Step-by-step explanation:

If the number is real and rational and non-natural, this means that it can be any number in the negative number space.

Additionally, since the number has to be less than -13, then the number could be any number less than -13.

With all these things considered, the number is any number less than -13 that is real and rational.

Cheers.

5 0
3 years ago
Which points are on a graph where y varies directly with x and y = 3 when x = -3
kondor19780726 [428]

A coordinate system is a method of determining the position of points or other geometric components on a manifold. The points which vary are on a graph where y varies directly with x are (-1, 1), (0, 0), and (-5, 5).

<h3>What are coordinates?</h3>

A coordinate system is a method of determining the position of points or other geometric components on a manifold, such as Euclidean space, by using one or more integers, or coordinates.

Given that y varies directly with x, therefore, we can write,

y∝x

y = kx

Also, y=3 and x=-3, therefore, the value of k can be written as,

3=k(-3)

k=-1

Now, the points which vary are on a graph where y varies directly with x are (-1, 1), (0, 0), and (-5, 5).

Learn more about Coordinates:

brainly.com/question/23450276

#SPJ1

3 0
2 years ago
Using traditional methods, it takes 95 hours to receive a basic flying license. A new license training method using Computer Aid
Snowcat [4.5K]

Answer:

There is not sufficient evidence to support the claim that the technique performs differently than the traditional method.

Step-by-step explanation:

The null hypothesis is:

H_{0} = 95

The alternate hypotesis is:

H_{1} \neq 95

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

A researcher used the technique with 260 students and observed that they had a mean of 94 hours. Assume the standard deviation is known to be 6.

This means, respectively, that n = 260, X = 94, \sigma = 6

The test-statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{94 - 95}{\frac{6}{\sqrt{260}}}

z = -2.69

The pvalue is:

2(P(Z < -2.69))

P(Z < -2.69) is the pvalue of Z when X = -2.69, which looking at the z-table, is 0.0036

2*(0.0036) = 0.0072

0.0072 < 0.01, which means that the null hypothesis is accepted, that is, there is not sufficient evidence to support the claim that the technique performs differently than the traditional method.

7 0
2 years ago
I NEED HELP WILL GIVE YOU 100 POINTS!!!! IF SOLVED CORRECTLY ​
Dafna11 [192]

Answer:

The edge lengths are 3 for all of them. Radical cubed 27 is also 3.

Step-by-step explanation:

27/ 3 = 9.  The  square root of 9 is 3.  So 3 * 3 * 3 = 27. For the bottom answer, it is 3 since 3 * 3 * 3 = 27.

How simple is this answer. I don't understand your problem.

6 0
3 years ago
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